Kalculator vs Calculator Smart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kalculator
This app offers a modern calculator experience, bridging the gap between basic phone calculators and complex scientific tools. It allows for complex calculations and stores operation history, functioning like a mobile numeric spreadsheet. It syncs seamlessly across Apple devices.
- Complex calculation support
- Operation history storage
- Numeric spreadsheet functionality
- Cross-device syncing (iPhone, iPad, Apple Watch)
- Modern interface
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Have you noticed that your phone’s calculator isn’t any better than the ones from back in the 80s? Do you find yourself using Google or Excel to calculate something like this: (80*200)/29+56 ? Then, Kalculator is definitely for you. Kalculator makes you fast on your feet with numbers no matter where you are. Face it, you always find yourself needing to find the middle ground between a scientific graphing calculator and the one you threw away 10 years ago. Kalculator is that sweet spot. Kalculator can store your operations history and resolve complex calculations. It’s like a single cloumn numeric spreadsheet on your phone. It works seamlessly in your iPhone, iPad and Apple Watch and helps keep everything in sync.
Calculator Smart
This app offers a powerful and precise calculator for everyday math and advanced scientific computations. It features a clean interface with large buttons, supporting complex equations, multiple modes, and intuitive input methods. Personalize your experience with colorful skins and custom icons.
- 30+ scientific operations
- Degrees and Radians support
- Parentheses and nested equations
- Intuitive input with slide-to-delete
- Copy & Paste results
- Apple Watch app and Lock Screen Widget
- Colorful skins and custom icons
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Calculator Smart is the most powerful and precise calculator for iPhone, iPad, and Apple Watch — built for everyday math and advanced scientific computations alike. Whether you need a quick percentage or a complex nested equation with parentheses, Calculator Smart handles it all with a clean, modern interface and lightning-fast big buttons. Scientific & Standard Modes • 30+ scientific operations including trigonometry, logarithms, and more • Degrees and Radians support • Parentheses and nested parentheses for complex equations • Output in Decimal or Scientific Notation (mantissa/exponent) Intuitive Input • Slide to delete wrong digits instantly • Double-tap or long-press to Copy & Paste results • Full External Keyboard support (Bluetooth & Smart Keyboard) • Three-digit grouping with locale-specific decimal and thousands separators Cross-Platform & Widgets • Apple Watch app with Complication shortcuts • Lock Screen Widget — calculate without unlocking your device • Messages Extension — share results directly in conversations • Multitasking: Slide Over and Split View (iPad) Personalization • Colorful skins to match your style • Custom App Icons that match your chosen skin • Button sound feedback for a satisfying tactile feel Universal Purchase — buy once, use on all your Apple devices. Download Calculator Smart for FREE today!
Screenshots
Verdict
The clearest difference is rating: Calculator Smart at 4.7 against Kalculator's 4.2. Calculator Smart also leads on ratings volume (498 vs 19). Kalculator's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, review sentiment, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Kalculator sells 7 one-off in-app purchases and Calculator Smart sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Calculator Smart holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Calculator Smart has 498 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 38% of Kalculator's written reviews are positive against 36% of Calculator Smart's, so the app with the better star average is not the one people write more warmly about.
Kalculator ships an update every 6 weeks, Calculator Smart every 4 months. The most recent releases landed on November 1, 2026 and October 23, 2026 respectively.
| Parameter | Kalculator | Calculator Smart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (19 ratings) | 4.7 (498 ratings) — better |
| Positive reviews | 38.5% of reviews — better | 36.4% of reviews |
| Number of ratings | 19 | 498 — better |
| Update frequency | Every 6 weeks — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple TV, Apple Watch | iPhone, iPad, iPod, Mac, Apple TV, Apple Watch — better |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 41 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Koombea, Inc. | Miroslav Otsedarski |
Customer experience
Kalculator
Calculator Smart
In-app purchases
Kalculator
- Old School Theme Pack$0.99
- Dark Theme Pack$0.99
- Pastel Theme Pack$0.99
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- Vibrant Theme Pack$0.99
- Classic Theme Pack$0.99
- Light Theme Pack$0.99
- Seasons Theme Pack$0.99
Calculator Smart
- Colorful Skins and Remove Ads$1.99
- Colorful Skins$1.99
- Colorful Skins for Mac app$1.99
Questions
Is Kalculator free?
Is Calculator Smart free?
Which has better reviews, Kalculator or Calculator Smart?
Do Kalculator or Calculator Smart have ads?
Which is updated more often, Kalculator or Calculator Smart?
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